Tree Wall to halt the Sahara

I read about this ambitious project to try to stop the southward advance of the Sahara desert the other day and thought it was worth a post if for no other reason than the bigh-thinking scale of the project.

Push for 'Great Green Wall of Africa' to halt Sahara

It sounds like it's nothing more than a big idea at this point and there's not alot of support for the effort, I'm inspired by the thinking that drives it - kindof like trying to control mother nature on a continental scale.